Harness-motion for looms.



PATENTED APE 1'7; 1905.

C. F, ROPER, HARNESS M0 T N FOR LOOMS.

APPLICATION FILED FEB.13,1905

No. 817,806. PATENTED APR. 17, 1906.

G. P. ROPBR. HARNE$S MOTION FOR LOOMS.

APPLICATION FILED PEB.13,1905.

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J14 f D f Ina/621F5 v 5V1 Zn 68868 I zarzes Z'TRorer No. 817,806.PATENTED APR. 17, 1906.

(J. F. ROPER'. HARNESS MOTION FOR LOOMS.

APPLIOATION FILED FEB. 13, 1905.

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WII/I/I/ I Wii'uesses &\ g fgjz n I /5 area per Fig. 8 is a detailvertical section CHARLES F. ROPER, OF HOPEDALE, MASSACHUSETTS, ASSIGNORTO DRAPER COMPANY. MAINE.

OF PORTLAND, MAINE, A CORPORATION OF HARNESS-MOTION FOR LOOMS.

Specification of Letters Patent.

Patented April 17, 1906.

Application filed February 13 1905. Serial No. 245.453.

To all whom, it may concern:

Be it known that 1, CHARLES F. Korea, a citizen of the United States,residing at Hopedale, in the county of WVorcester and State ofMassachusetts, have invented cer tain new and useful Improvements inHarness-Motions for Looms, of which the following is a specification.

The present invention consists in certain improvements upon the side-camharnessmotion set forth in Letters Patent of the United States No.770,116, granted September 13, 190 1, to the Draper Company. The presentimprovements and their relation to the harness-motion of said patent areillustrated in the accompanying drawings, in which Figure 1 is a frontelevation of a harnessmotion embodying the various features of theinvention in their preferred form, so much only of the loom beingillustrated as is necessary to show the application of the inventionthereto. Fig. 2 is a view of one of the metallic heddles carried by theheddleshaft. Figs. 3 and 4 are detail sectional views taken on the line3 4 of 6, the two views showing the cam R, the wheel Q turned todifferent positions, and hence showing different configurations of thecam B. Fig. 5 is a detail view of one of the selector-cams, the sleeveand shaft upon which the cam is mounted being shown in cross-section.Fig. 6 is a side view of the loom. Fig. 7 is a detail horizontal sectionon the line 6 6 in 1. on the line 8 S in Fig. 7. Fig. 9 is a detail Viewof a camlever, the two coupler-bars connected there with, thereciprocating actuator, and cooperating features, the parts being shownin the positions which they assume during the dwell-of the actuator nearthe limit of its upward movement, and one of the coupler-bars being in aposition to be engaged by the actuator during its downward movement.Fig. 10 is a detail view of one of the springs which acts upon one ofthe coupler-bars. Fig. 11 is a face view of the harness-cam from whichthe reciprocating movements are imparted to the actuator. Fig. 12 is aview similar to Fig. 9, showing the positions which the parts assumewhen the actuator is at the middle of its downward movement, one of thecouplerbars being engaged by the actuator and the other coupler-barbeing held out of engagetions which the parts assume when the actuatoris at the limit of its downward move ment. Fig. 14 is a detail sectionalview taken on the line 14 14 of Fig. 12, illustrating the manner inwhich the projections on the couplerbars cooperate to hold one bar outof engagement with the actuator while the other is in engagementtherewith and Fig. 15 is a detail section of one of the side bars of theheddleshaft, showing its relation to its guide and said shaft. Figs. 1,6, 9, 11, 12, and 13 are drawn to the same scale, while the remainingfigures are on larger scales.

For the sake of clearness there is illustrated in the drawings only oneheddleshaft and the connections between it and the actu ator, it beingunderstood that any desired number of heddle-shafts may be employed.

Each heddle-shaft A is carried by two opposite reciprocating links B Band supports a series of metallic heddles O of well-known construction,each having an elongated slot a, through which the cross-bar A extends.The links B are guided vertically by fixed guides D D. As shown in Fig.7 each guide D is wide enough to guide all of the links andheddle-shafts employed.

The reciprocating links B B at their upper ends are connected tobell-crank levers E and F, which are connected together by a link I).The bell-crank lever F has rolls 0 and cZ,which embrace the cam-surfaceof a pivoted camlever G, to the opposite ends of which are pivotallyconnected coupler-bars H and I. The cam-lever G has a rest 6, whichlocks with either roll d or c. The two coupler-bars H and I are adaptedto engage a vertically-reciprocating actuator J, which is located upon aslide K, adapted to slide vertically upon fixed guide-rods ff. Eachcoupler-bar H and I has a notch g, adapted to cooperate with theactuator J.

The actuator-slide K is connected by a piv oted rod V to one end of alink W, which at its opposite end. is pivoted to the framework of theloom. Only a portion of this link l/V is shown, since it is pivoted tothe framework of the loom in substantially the same way as is shown insaid patent in connection with the corresponding link thereof. This rodV has a slot through which the cam-shaft U of the loom extends. Thiscam-shaft has at the outer side of the loom beyond the rod V a cam L,with which cooperate rolls a: and w, carried by the rod V, this cam Lbeing angularly adjustable upon the cam-shaft U by means of the disk Tand bolts 1;.

The coupler-b ars H and I are brought into cooperation with the actuatorJ by means of automatic selecting devices. Each pair of coupler-bars Hand I belonging to one heddleframe is moved away from the actuator J bymeans of a single cam-actuated follower M, but each coupler-b ar H and Iis moved toward the actuator J by its own spring-actuated follower 0.Thus in a five-harness loom there would be five of the cam-actuatedfollowers M and ten of the spring-actuated followers 0. Eachcam-actuated follower M slides hori- Zontally between guide-plates i,fixed to the rods f f, and is controlled by a selectorcam N on a sleeveP upon the shaft 0, mounted in a fixed bracket p. This shaft 0 has abeveled gear 1", which engages a beveled gear 8 on a vertical shaftt,having at its lower end a starwheel Q, which engages with a cam R on.the crank-shaft S of the loom. The two coupler bars H and I areprevented from simultaneously engaging the actuator J by cooperatingcams h, with which they are respectively equipped.

The devices as thus far described are substantially the same in theirorganization and mode of operation as the corresponding devices in theaforesaid patent, No. 770,116, excepting as hereinafter stated.

The first of the present improvements relates to the connections betweenthe actuatinglevers E and E and the heddle-shaft A. In said Patent No. 770,116 the heddle-shaft is connected to rectilinearly-moving side barswhich are connected to said levers by links. In the present constructionthe side bars B are themselves links directly pivoted to the respectivelevers E and E. As shown in Fig. 15, each link B has a socket in whichthe end of the shaft A loosely fits, and the link B has a rocking faceon its outer side which comes in contact with the guideway D. Thisconstruction is not only simpler than that of said patent, but itobviates any binding of the heddle links and insures their movement withthe minimum friction. The loose connection between the shaft and thelinks B compensates for the swing of the links due to their directpivotal connection with the levers E and E.

The second. of the present improvements relates to the spring-actuatedfollowers 0, which cause the engagement of the couplerbars H and I withthe actuator J and maintain the coupler-b are in cooperation with theselecting-cam N. Each follower O is a bent lever and it is pivotallyconnected to the loomframe and has a toe j, which bears against one ofthe coupler-bars and at its other end it is engaged by a coiled spring7c. Each spring is connected at opposite ends to metallic loops Z, oneof which is hooked over the corresponding follower O,while the other(see Figs. 7 and 10) is hooked over a fixed finger m. This constructionenables coiled springs, such as those at 7c, to be employed, whichmaintain their elasticity indefinitely and insure the prompt and certainaction of the coupler-bars H and I. The metallic loops Z are readilyattached to and removed. from the follower-levers O and the fixedfingers m, thus facilitating the replacement of springs 7c in case ofneed and also facilitating rendering any harness inoperative in case itis desire not to use the same.

I claim as my invention 1. A harness-motion for looms having, incombination, a heddle-shaft and reciprocating links at opposite endsthereof, a substanti ally vertical guide for each ofsaid links, and anactuating-lever pivotally connected directly to each of said links.

2. A harness-motion for looms having, in combination, a heddle-shaft andreciprocating links at opposite ends thereof, each link being looselyconnected with one end of said shaft, a substantially vertical guide foreach of said links, and an actuating-lever piv otally connected directlyto each of said links.

3. A harness-motion for looms having, in combination, a heddle-shaft,two actuatinglevers therefor, a reciprocating link pivotally connectedat one end to one of said actuating-levers and at its other end beingloosely connected to one end of said heddle-shaft, each of said linkshaving a rocking face on its outer .lower end, and a substantiallyvertical guide for the lower end of each link which engages said rockingface.

4:. A harness-motion for looms having, in combination, a heddle-shaftand actuating coupler bar therefor, intermediate connections betweensaid heddle-shaft and said coupler-bar, an actuator adapted to codperatewith said coupler-bar, a cam for moving said coupler-bar in onedirection and aspringactuated follower for moving said coupler-b ar inthe opposite direction, said spring-actuated follower comprising apivoted lever and a spring acting upon said lever.

5. A harness-motion for looms comprising a coupler-bar in combinationwith a pivoted follower-lever bearing against said couplerbar, a fixedfinger, and metallic loops adapted to be placed over the ends of saidfollowerlever and finger respectively, and a coiled spring connectingsaid metallic loops.

CHARLES E. ROPER.

Witnesses:

GEORGE Orrs DRAPER, EnNEs'r W. Woon.

